Satya Nadella confirmed that the first Vera Rubin rack is running on Microsoft Azure.

Judged as of 2026-03-17. TRUE: on or before that date, Satya Nadella publicly stated (in a post, blog, speech or press release) that the first Vera Rubin rack or system was running on Microsoft Azure. MOSTLY TRUE: Microsoft confirmed this on or before that date, but through another official channel or executive rather than Nadella himself, or with slightly different wording (for example 'system' or 'cluster' instead of 'rack'). MOSTLY FALSE: Nadella or Microsoft confirmed it only after 2026-03-17, or confirmed only that a Rubin deployment was planned or in progress, not running. FALSE: Microsoft's statements from that period show that no Vera Rubin hardware was running on Azure, or the confirmation concerned a different product (for example GB300).

Set before the research began.

1. E1 Microsoft claims to be first hyperscaler to "power on" Nvidia Vera Rubin NVL72 system DCD (Data Centre Dynamics) · 17 March 2026

   “In a post on X, Microsoft CEO Satya Nadella shared an image of the latest generation Nvidia NVL72 system, writing: "We're the first cloud to bring up an Nvidia Vera Rubin NVL72 system for validation, another big step in building the next generation of AI infrastructure with Nvidia."”

2. E2 Microsoft at NVIDIA GTC: New solutions for Microsoft Foundry, Azure AI infrastructure and Physical AI - The Official Microsoft Blog The Official Microsoft Blog (Microsoft) · 16 March 2026

   “now we are excited to be the first hyperscale cloud to power on NVIDIA’s newest Vera Rubin NVL72 in our labs. Over the next few months, Vera Rubin NVL72 will be rolled out into our modern, liquid-cooled Azure datacenters.”

3. E3 From Microsoft to AWS, the Nvidia Vera Rubin rush is officially underway - Web Hosting News Web Hosting News (hostingdiscussion.com) · 18 March 2026

   “During Nvidia’s GTC event this week, CEO Satya Nadella confirmed the company brought up an Nvidia Vera Rubin NVL72 system for validation in a lab setting, staking a claim as the first cloud provider to reach that milestone.”

E1, dated 2026-03-17, reports that Satya Nadella posted on X that Microsoft is "the first cloud to bring up an Nvidia Vera Rubin NVL72 system for validation". E2, Microsoft's official blog from 2026-03-16, says Microsoft was the first hyperscale cloud to power on a Vera Rubin NVL72 "in our labs". So Nadella did confirm a running Vera Rubin system on or before the judging date. However, E2 and E3 say the system was in a lab for validation, and E2 says it would be rolled out into Azure datacenters only over the following months, so describing it as "running on Microsoft Azure" goes somewhat beyond what was confirmed.